<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>重要性测试</title>
  <style>
  html, body {
    height: 100%;
    width: 100%;
  }
  body {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  a {
    font-size: 30px;
    color: red;
    text-decoration: overline;
  }
  a {
    text-decoration: line-through !important;
  }
  </style>
</head>
<body>
  <a href="">Lorem.</a>
</body>
</html>